Activated Dendritic Cell Membrane-Engineered Nanoformulation of Metallo-Immunomodulators as Lysosome-Targeted Adjuvants for Synergistic Cancer Immunotherapy.

Combination of chemotherapy and cancer immunotherapy has shown substantial clinical promise. However, the immunosuppressive tumor microenvironment (TME) poses a critical barrier to this combination therapy. Here, a tumor lysosome-targeted immunomodulatory strategy based on a biomimetic nanoadjuvant is presented, which effectively overcomes the immunosuppressive TME and demonstrates enhanced therapeutic efficacy when combined with chemotherapy.

A metal-drug self-delivery nanomedicine alleviates tumor immunosuppression to potentiate synergistic chemo/chemodynamic therapy against hepatocellular carcinoma.

Hepatocellular carcinoma (HCC) is the most common primary liver cancer with a poor prognosis. Chemotherapy is one of the first-line clinical therapeutic strategies for HCC. Still, the effectiveness of chemotherapy is hampered by the tumor immunosuppressive microenvironment and drug resistance caused by insufficient delivery.

Reversing Photodynamic Therapy-Induced Tumor Metabolic Symbiosis and Immune Evasion Delivers a Two-Punch Attack on Tumors.

Photodynamic therapy (PDT) is an attractive approach for tumor treatment because of its precision, potent cytotoxic effect, and low risk of resistance compared to conventional cancer treatments. However, PDT consumes oxygen. The oxygen depletion effects in PDT-treated tumor cells can elevate lactic acid production and efflux, promoting the progression of surrounding tumor cells through tumor metabolic symbiosis and promoting macrophages to M2-type polarization for supporting tumor progression.

Boosting chemotherapy of bladder cancer cells by ferroptosis using intelligent magnetic targeting nanoparticles.

A versatile nano-delivery platform was reported to enhance the tumor suppression effect of chemotherapy by augmenting tumor cells' ferroptosis. The platform consists of pomegranate-like magnetic nanoparticles (rPAE@SPIONs) fabricated by encapsulating superparamagnetic iron oxide nanoparticles (SPIONs) within a reduced poly(β-amino ester)s-PEG amphiphilic copolymer (rPAE). The resulting platform exhibits several functionalities.

Cationic Polymers as Transfection Reagents for Nucleic Acid Delivery.

Nucleic acid therapy can achieve lasting and even curative effects through gene augmentation, gene suppression, and genome editing. However, it is difficult for naked nucleic acid molecules to enter cells. As a result, the key to nucleic acid therapy is the introduction of nucleic acid molecules into cells.

Poly(β-amino ester)s-based nanovehicles: Structural regulation and gene delivery.

The first poly(β-amino) esters (PβAEs) were synthesized more than 40 years ago. Since 2000, PβAEs have been found to have excellent biocompatibility and the capability of ferrying gene molecules. Moreover, the synthesis process of PβAEs is simple, the monomers are readily available, and the polymer structure can be tailored to meet different gene delivery needs by adjusting the monomer type, monomer ratio, reaction time, etc.

The nanoformula of zoledronic acid and calcium carbonate targets osteoclasts and reverses osteoporosis.

Osteoporosis is known as an imbalance in bone catabolism and anabolism. Overactive bone resorption causes bone mass loss and increased incidence of fragility fractures. Antiresorptive drugs are widely used for osteoporosis treatment, and their inhibitory effects on osteoclasts (OCs) have been well established.

Precision Nanomedicines: Targeting Hot Mitochondria in Cancer Cells.

Mitochondrion is a multifunctional organelle in a cell, and it is one of the important targets of antitumor therapy. Conventional mitochondrial targeting strategies can hardly distinguish the mitochondria in cancer cells from those in normal cells, which might raise a concern about the biosafety. Recent studies suggest that a relatively high temperature of mitochondria exists in cancer cells.

Corrigendum: Analysis of time series gene expression and DNA methylation reveals the molecular features of myocardial infarction progression.

[This corrects the article DOI: 10.3389/fcvm.2022.

Analysis of Time Series Gene Expression and DNA Methylation Reveals the Molecular Features of Myocardial Infarction Progression.

Myocardial infarction (MI) is one of the deadliest diseases in the world, and the changes at the molecular level after MI and the DNA methylation features are not clear. Understanding the molecular characteristics of the early stages of MI is of significance for the treatment of the disease. In this study, RNA-seq and MeDIP-seq were performed on heart tissue from mouse models at multiple time points (0 h, 10 min, 1, 6, 24, and 72 h) to explore genetic and epigenetic features that influence MI progression.

Mitochondrial temperature-responsive drug delivery reverses drug resistance in lung cancer.

Reversal of cancer drug resistance remains a critical challenge in chemotherapy. Mitochondria-targeted drug delivery has been suggested to mitigate drug resistance in cancer. To overcome the intrinsic limitations in conventional mitochondrial targeting strategies, we develop mitochondrial temperature-responsive drug delivery to reverse doxorubicin (DOX) resistance in lung cancer.

Preparation of Lanthanide Ions-Doped BiPO₄ Nanoparticles and Fe Ions Assay.

A facile method for the synthesis of a Ln3+ (Eu, Tb) doped BiPO4 (BPO) nanocrystals were developed using an environment-friendly low temperature hydrothermal method assisting with phenol formaldehyde resin (PFr). Structure and surface functional groups of BPO samples were characterized by XRD and IR patterns. Morphology was studied by SEM technology also.